Display screen with a transitional graphical user interface



FIG. 1 is a front view of the first image in a sequence for a displaywith a transitional graphical user interface; and,

FIG. 2 is a front view of a second image thereof.

The broken lines shown in the Figures illustrate a display screen andform no part of the claimed design. The broken lines illustrate portionsof the graphical user interfaces and form no part of the claimed design.The appearance of the transitional image sequentially transitionsbetween the images shown in FIGS. 1-2 . The process or period in whichone image transitions to another image forms no part of the claimeddesign. The various cross-hatched lines shown in the boxes in theFigures indicate relative different colors of the boxes, but otherwiseforms no part of the claimed design.

CLAIM The ornamental design for a display screen with a transitionalgraphical user interface, as shown and described.